Stomach Hard

If that's different for you I would maybe time how lts hard for trying lying or your side or walking around to see if it eases , my stomach is hard and tight quite often and has been from around 27 weeks I'm now 35 weeks and the midwife said its just getting your body used to using those muscles

Sounds like Braxton hicks, I've had it loads this time. If it's not painful & not consistent contractions it's likely BH.

I get them more when I’m dehydrated try drinking some water or some tea or something xx

Sounds like BH , had this last week 31 weeks and they said it happens alot more when you are dehydrated and need more like vitamins etc as your body’s exhausted from running around after children this is my 3rd and finding it that I have it constant at the minuet x